If you look the picture in the Webb's original rotation, there are 4 shining stars (?) on the middle-right of the picture. Now, if you follow down with your eyes, there's a structure that's eerily similar to the Pillars :)

I know we're joking but, on a smaller scale...Periodic structures in crystals or beehives (for examples) would be shortcut of the simulation or just manifestations of underlying laws?

Shortcuts are expensive. Rather have simple set of rules and just apply it to everything.

While grabbing the popcorn and see where simulation goes by itself of course.

If the simulation is for humans only it doesn't need to be simulated, might be just a static sky box.